Signis! was built with a simple mission: make document signing on Android free, fast, and private. We believe everyone deserves access to professional document tools without paying subscriptions or compromising their privacy.
Signis! is a free Android app that lets you sign PDFs and images, create professional CVs, watermark your photos, and manage PDFs — all 100% offline. Unlike cloud-based signing services like Adobe Acrobat or DocuSign, Signis! processes everything locally on your device. Your documents never leave your phone, and no internet connection is required for any feature.
Signis! is developed by Ruben Marti, an independent Android developer focused on building privacy-first, offline-capable productivity tools. You can find more apps by RubenM on the Google Play Store.
Have questions, feedback, or need support? Reach out at [email protected]. You can also submit feedback directly through the app.